NJM2871B Просмотр технического описания (PDF) - Japan Radio Corporation

Номер в каталоге

Компоненты Описание

производитель

NJM2871B

Low Dropout Voltage Regulator

Japan Radio Corporation  

NJM2871B/72B

2 In use of ON/OFF CONTROL:

VIN

0.1µF

VIN

VOUT

NJM287*B

R

CONTROL

NOISE

BYPASS

GND

VOUT

1.0µF *6

Cp=0.01µF

*6 1.8V<Vo ≤ 2.6V version : Co=2.2µF(ceramic)

Vo≤1.8V version : Co=4.7µF(ceramic)

State of control terminal:

•“H”→ output is enabled.

•“L” or “open” → output is disabled.

Noise bypass Capacitance Cp

Noise bypass capacitance Cp reduces noise generated by band-gap reference circuit.

Noise level and ripple rejection will be improved when larger Cp is used.

Use of smaller Cp value may cause oscillation.

Use the Cp value of 0.01uF greater to avoid the problem.

POWER DISSIPATION vs. AMBIENT TEMPERATURE

NJM2871B/72BF Power Dissipation

(Topr=-40～+85℃,Tj=125℃,PD=200mW(Ta≦25℃))

500

400

On Board(114.3×76.2×1.6mm, FR-4)

300

Device itself

200

100

0

-50

-25

0

25

50

Ambient Temperature Ta(℃)

75

100

-4-

Ver.2005-01-25

Share Link: